brew install flyctl && fly launch --from https://github.com/freecodecamp/learn-nano-by-building-a-castle
curl -L https://fly.io/install.sh | sh && fly launch --from https://github.com/freecodecamp/learn-nano-by-building-a-castle
iwr https://fly.io/install.ps1 -useb | iex; fly launch --from https://github.com/freecodecamp/learn-nano-by-building-a-castle